CN216085067U

CN216085067U - Novel cylindrical battery buckle cover assembly

Info

Publication number: CN216085067U
Application number: CN202122004780.5U
Authority: CN
Inventors: 王正; 乔欣荣
Original assignee: Huizhou Siyang Technology Co ltd
Current assignee: Huizhou Siyang Technology Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-03-18
Anticipated expiration: 2031-08-24

Abstract

The utility model provides a novel cylindrical battery buckle cover assembly, which comprises a shell, wherein a negative electrode cover plate is arranged at the top of the shell, an annular boss is arranged below the negative electrode cover plate, the radius of the annular boss is smaller than that of the negative electrode cover plate, a welding position is formed between the annular boss and the edge of the negative electrode cover plate, and an excessive glue stop position is formed on the inner side of the boss.

Description

Novel cylindrical battery buckle cover assembly

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a novel cylindrical battery buckle cover assembly.

Background

Miniature cylinder lithium cell is button cell in order to become the applied battery form of present mainstream, its small advantage makes it can be applied to in a great deal of small-size electronic equipment, like wireless earphone etc. and miniature cylinder battery need rely on the encapsulation subassembly as the carrier in manufacturing process, current encapsulation subassembly model is various, but current lithium cell buckle closure subassembly structure is comparatively complicated, it is loaded down with trivial details to join in marriage the equipment process, lead to easily joining in marriage the dress error, and be difficult to adapt to highly automated's production mode, and it is not enough to have dress leakproofness still generally, the excessive gluey scheduling problem of insulating glue.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a novel cylindrical battery buckle cover component.

The technical scheme of the utility model is as follows:

a novel cylindrical battery snap cap assembly comprising:

a casing, the casing top is equipped with a negative pole apron, the negative pole apron below is equipped with annular boss, annular boss radius is less than the negative pole apron radius, annular boss with form a welding position between the negative pole apron edge, just annular boss inboard forms an excessive gluey position of stopping.

In the utility model, the novel cylindrical battery buckle cover component also comprises an anode pole arranged below the cathode cover plate, and the anode pole is connected with the cathode cover plate through a corrosion-resistant insulating glue.

Further, anodal utmost point post central point puts and is equipped with bellied utmost point post, just the negative pole apron corresponds utmost point post hole site has been seted up on the bellied utmost point post position of anodal utmost point post central point position, just utmost point post radius is less than utmost point post hole site radius.

In the utility model, the corrosion-resistant insulating glue is made of hydrofluoric acid-resistant insulating material, and the negative electrode cover plate and the positive electrode pole are bonded together in a high-frequency heating mode.

In the utility model, the bottom of the shell is provided with a liquid injection hole site.

In the utility model, the bottom of the shell is also provided with an explosion-proof weakened area.

In the utility model, the negative cover plate and the shell are welded and fixed in a laser welding mode.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the welding position is formed on the outer side through the boss arranged on the negative cover plate, the structure can be utilized to be matched with the shell for convenient positioning, so that the positioning requirement in the assembling process is simplified, the sealing quality is further improved by matching with laser welding, the glue overflow prevention position is formed on the inner side, the corrosion-resistant insulating glue is prevented from overflowing to the welding position in the high-frequency heating process, and the explosion-proof weakening area can provide a pressure relief channel for the internal pressure, so that the use safety is ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a cross-sectional view of a novel cylindrical battery cover assembly according to the present invention;

FIG. 2 is an exploded view of the novel cylindrical battery snap cap assembly;

fig. 3 is an exploded view of another angle of the novel cylindrical battery snap cap assembly.

The reference numerals are explained below:

1. a housing; 2. a negative electrode cover plate; 21. an annular boss; 22. welding positions; 23. an overflow prevention position; 24. pole hole site; 3. a positive pole column; 31. a pole column; 4. corrosion resistant insulating glue.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In order to explain the technical means of the present invention, the following description will be given by way of specific examples.

Examples

Referring to fig. 1 to fig. 3, the present embodiment provides a novel cylindrical battery cover assembly, including:

a casing 1, casing 1 top is equipped with a negative pole apron 2, negative pole apron 2 below is equipped with annular boss 21, annular boss 21 radius is less than negative pole apron 2 radius, form a welding position 22 between annular boss 21 and negative pole apron 2 edge, and annular boss 21 inboard forms an excessive glue and stops position 23, combine negative pole and apron, the complexity of structure has been reduced by a wide margin, and form welding position 22 in the outside through annular boss 21, cooperation casing 1 is convenient for the location, effectual simplification location requirement, it can be suitable for the joining in marriage of high automation to make it, form excessive glue in the inboard simultaneously and stop position 23, prevent that corrosion resistant insulating glue from overflowing to weld position 22 and the welding problem that leads to in high frequency heating process.

In this embodiment, novel cylinder battery buckle closure subassembly still includes one and locates anodal utmost point post 3 of 2 below negative pole apron, and anodal utmost point post 3 is connected with negative pole apron 2 through a corrosion resistant insulating cement 4, connects anodal utmost point post 3 and negative pole apron 2 through the 4 bonding of corrosion resistant insulating cement, can promote buckle closure subassembly whole leakproofness by a wide margin, prevents effectively that inside battery liquid from exposing, promotes life.

Further, 3 central authorities of anodal utmost point post put and are equipped with bellied utmost point post 31, and the negative pole apron 2 has seted up utmost point post hole site 24 on corresponding 3 central authorities of anodal utmost point post position bellied utmost point post 31 position, and utmost point post 31 radius is less than utmost point post hole site 24 radius, and the welding that outstanding utmost point post 31 design made anodal lead wire becomes convenient, has increased the connected mode with external protection shield simultaneously, has promoted the application scope of buckle closure subassembly.

In this embodiment, corrosion-resistant insulating glue 4 adopts resistant hydrofluoric acid insulating material to make to bond between negative pole apron 2 and anodal utmost point post 3 through the high-frequency heating mode, adopt resistant hydrofluoric acid insulating material can promote corrosion resistance when guaranteeing adhesive strength, promoted life when further promoting sealing strength, avoid because of the various problems that the corruption leads to.

In this embodiment, the bottom 1 of the casing is provided with a liquid injection hole (not shown) for facilitating liquid injection.

In this embodiment, the bottom 1 of the housing is further provided with an explosion-proof weakened area (not shown), and the explosion-proof weakened area enables the internal pressure to have a uniform discharge port, so that the direction and the size of explosion of the packaging structure under the condition of excessive internal pressure can be controlled, and the risk can be effectively reduced.

In this embodiment, the negative electrode cover plate 2 and the case 1 are welded and fixed by laser welding, which can ensure the sealing performance of the structure to the maximum extent.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. The utility model provides a novel cylinder battery buckle closure subassembly, a serial communication port, includes a casing, the casing top is equipped with a negative pole apron, the negative pole apron below is equipped with annular boss, annular boss radius is less than the negative pole apron radius, annular boss with form a welding position between negative pole apron edge, just the inboard excessive gluey position of stopping that forms of annular boss.

2. The novel cylindrical battery cover assembly according to claim 1, further comprising a positive electrode post disposed below the negative electrode cover plate, wherein the positive electrode post is connected to the negative electrode cover plate through a corrosion-resistant insulating adhesive.

3. The novel cylindrical battery buckle cover assembly according to claim 2, wherein a raised post is disposed at the central position of the positive post, a post hole is disposed at the position of the negative cover plate corresponding to the raised post at the central position of the positive post, and the post radius is smaller than the post hole radius.

4. The novel cylindrical battery cover assembly according to claim 2, wherein the corrosion-resistant insulating glue is made of hydrofluoric acid-resistant insulating material, and the negative electrode cover plate and the positive electrode post are bonded together by high-frequency heating.

5. The novel cylindrical battery cover assembly according to claim 1, wherein the bottom of the housing defines a liquid injection hole.

6. The novel cylindrical battery snap cap assembly of claim 1, wherein the bottom of the housing is further provided with an explosion-proof weakened area.

7. The novel cylindrical battery cover assembly as claimed in claim 1, wherein the negative cover plate and the housing are welded and fixed by laser welding.